LI74088: INSTANCE ABEND CAN OCCUR WHEN TRUSTED UDF AND TRUSTED SCALAR FUNCTION ARE USED IN THE SAME QUERY

DB2 Version 9.1 Fix Pack 7  for Linux, UNIX and Windows
DB2 Version 9.1 Fix Pack 7a  for Linux, UNIX and Windows
DB2 Version 9.1 Fix Pack 8  for Linux, UNIX and Windows
DB2 Version 9.1 Fix Pack 9  for Linux, UNIX and Windows
DB2 Version 9.1 Fix Pack 10  for Linux, UNIX and Windows
DB2 Version 9.1 Fix Pack 11  for Linux, UNIX and Windows
DB2 Version 9.1 Fix Pack 12  for Linux, UNIX and Windows

APAR status

• Closed as program error.

Error description

• The following SQL statement is an example of a statement that
  may trigger this condition.
  SELECT RIGHT(PATH,9) FROM SYSIBMADM.DBPATHS or SELECT
  LEFT(PATH,9) FROM SYSIBMADM.DBPATHS
  where SYSIBMADM.DBPATHS is a view on top of the table function
  SYSPROC.ADMIN_LIST_DB_PATHS() UDF
  RIGHT is a scalar function.
  
  This query leads to instance termination and the following stack
  dump can be observed in case of an ABEND
  
  _Z20sqleUCtrustedLvlTermP15sql_static_dataP8sqlrr_cbP18sqleUCtru
  stedStackP10sqlri_ufob + 0x02b6
  _Z28sqlri_close_udf_ufob_cleanupP10sqlri_ufobP5sqlcaP8sqlrr_cb +
  0x0a0c
  _Z19sqlri_close_udf_eosP25sqlra_sql_context_siblingiP8sqlrr_cb +
  000001FFFFFEF4F0
  _Z16sqlricls_complexP8sqlrr_cbilll + 0x238c
  _Z16sqljs_ddm_clsqryP14db2UCinterfaceP14sqljsDDMObject + 0x1670
  
  A key condition for this problem to occur is that the UDF code
  needs to attach to the instance.
  ( This is not the case for all UDF's. )
  The problem also does not appear on AIX and has so far only been
  observed on Linux and Solaris.
  

Local fix

• n/a
  

Problem summary

• Users affected: This issue is specific for Linux and SunOS only.
  
  Problem Description: Instance ABEND can occur when trusted UDF
  and trusted scalar function are used in the same query like
  
  SELECT RIGHT(PATH,9) FROM SYSIBMADM.DBPATHS or SELECT
  LEFT(PATH,9) FROM SYSIBMADM.DBPATHS
  where SYSIBMADM.DBPATHS is a view on top of the table function
  SYSPROC.ADMIN_LIST_DB_PATHS() UDF
  RIGHT is a scalar function.
  
  Problem Summary:
  

Problem conclusion

• First fixed in DB2 UDB Version 9.1, FixPak 7
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  LI74111

Fix information

• Fixed component name

  DB2 UDE ESE LIN

• Fixed component ID

  5765F4104

Applicable component levels

• R910 PSY

     UP

• R950 PSY

     UP